Accident Analysis for Chicago

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Enter an Address or Select a Red Light Camera Intersection
MM-DD-YEAR as date format Ensure your period to analyze is less than the data range

This site allows you to visualize and analyze accidents in Chicago, with an emphasis on Chicago's red light cameras.

Accidents help provide an important measure of whether an intersection is getting safer. It is also important to consider the type of collision, for example, is it a rear end or angle accident.

Tickets provide an indication of violations for left turns and right turns on red lights. It is often claimed that tickets at red light intersections will reduce accidents.

The current functionality allows you to enter in an address and a width for a buffer. The site will then calculate accidents within this range.

For those interested in red light cameras, the site provides data on accidents that occurred within a 100 feet of a red light camera or speed camera between 2009 to 2012. The ticket data includes tickets from 2007 to March 2014. Ticket data does not exist for all intersections. The analysis is automated with over 300 intersections, so please let us know if something doesn’t look right.

All the data and and code for this site are all freely available. This site is just one of many related MiningChi projects on data visualization and statistics.

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Our Code at Github: Shiny code for our site

Contact Us: miningchi2 AT gmail